Rehnquist, known for his no-nonsense style, sent a momentary shock through the audience of tourists and lawyers gathered for the court's final day of its 2002-03 session and caused gasps from anxious reporters as he said that the court would like to "note a retirement."

When Rehnquist said Dowling would step down after 15 years of "superb service to the court and the public," audience members and reporters groaned and laughed as they realized what had happened.

After the announcement of Dowling's retirement, the only speculation in the court was how hard the justices were laughing behind closed doors.

The chief justice and Justice Sandra Day O'Connor have both been the focus of retirement speculation, and the term's final session is the traditional day for making retirement announcements. Rehnquist, 78, finished his 31st year on the court. O'Connor, 73, has battled breast cancer in the past.